Pinwheel feeding device



April 12, 1933-` H. G. DYBvlG v v 2,113,579

PINWHEEL FEEDING DEVICE Filed Oct. 31, 1936 A, sa Q Patented pr. y12,1938 orrics PENWHEEH FEEDING DEVECE Henry Gnlliybvig, Dayton, Ohio,assigner to .Bohn Q. Sherman, Dayton, Ohio This invention relates to apin wheel feeding device and in more particular to a pin wheel feedingdevice mounted in an expansible platen.

An object of this invention is to provide an v expansible platen havinga pin wheel feeding device adapted tofeed various widths of recordmaterial.

Another object of this invention is to have feeding pins project throughvariable length slots in the platen.

Another object of this invention is to provide llers for slots in theplaten.

Other objects and advantages reside in the construction of parts7the'combination thereof and the mode of operation, as will become moreapparent from the following description.

Fig. 1 is a fragmentary perspective view of a typewriter showing rnyplaten.

Fig. 2 is a longitudinal sectional view of my 20 platen takensubstantially on the line 2-2 of Fig. 5.

Fig. 3 is an enlarged fragmentary longitudinal sectional view takensubstantially on the line 3-3 of Fig. 4 and drawn to a larger scale thanthe longitudinal sectional view shown in Fig. 2.

Fig. 4 is a fragmentary sectional view taken substantially on the line 44 of Fig. 3.

Fig. 5 is a transverse sectional view taken substantially on the line5-5 of Fig. 2, but drawn to a larger scale than Fig. 2, and a. smallerscale than Figs. 3 and 4.

Fig. 6 is an enlarged fragmentary sectional view showing a tooth of thepin wheel feeding device cooperating with the edges of the longitudinalslots as a gear tooth.

The pin wheel feeding device used in this invention incorporates some ofthe principles disclosed in my copending application Serial No. 88,608for Pin wheel feed, filed July 2, 1936.

In the past it has been general practice to provide round holes in theperiphery of the platen of writing machines to permit the feeding pinsto project therethrough into engagement with marginally punched feedingholes in superimposed strips of record material. Various at-y Otherattempts have been made wherein the pin wheel feeding devices areadjustable axially,

so as to change the spacing' between the pin wheel feeding devices thatusually are adapted to engage marginal holes in the superimposed stripsof record materiali.` The distance between the pin wheel feeding deviceshas been spanned by removable platens or platen sections. These may besplit so as to permit the easy removal of the sections. In shifting fromone width material to another, sections having suitable length areselected for use between the pin wheels.'

In the device disclosed herein and forming the invention hereof, aplaten having a plurality of equally spaced longitudinal slots in oneend yhas been used. The slots permit the adjustment of one of the pinwheel feeding wheels axially, without interference from the platen. Inorder to permit the use of the platen between the pin Wheels, suitablestrips having a tongued and grooved relation with the platen, fill theslots between `the pin wheels, so that as the pin wheels are separatedthe strips are drawn into the slots vacated by the adjustable pin wheel,so as to present a uniform writing surface to the record materialadvanced in registry past writing pdsition. *i

In the drawing the reference character I0 indicates the typewriterhaving a traveling carriage I2 supporting a platen Il. Instead ofthecarriage I2 traveling to and fro, the type basket could be mountedfor reciprocatory movement.

Platen mounting The platen Il includes a cylindrical member` I6,supported upon a pair of discs or end framesA I8 and 2li. In order toprovide a proper cushion for the impinging type, the face of the cylinvdrical member I6 is lined with rubber 22. One

In conventional. typewriters the platen is rotated by the operatorgrasping a knob disposed on either end of the reciprocatory carriage.The

Y platen may also be rotated automatically by the line spacingmechanism, which has not been shown in the present application, as theline spacing mechanism per se does notconstitute a part of applicantscontribution to the art.

In the present modification the disc I8 is fixedly attached to a tubularmember 30, journalled in the end frame to the left of the carriage, asshown in Fig. 2, which includes members 32 and 34, each of which hasbeen broken away for the sake of clearness. 'I'he tubular member 30 isiixedly attached to a gear 36, meshing with a pinion 38, driving a gear40, xedly attached to a suitable knob 42 and supported upon a bracket 44xedly\ carried by the end of the end frame of the carriage I2. As theoperator grasps and rotates the knob 42, the gear 40 driving the pinion38 actuates the gear 36 and with it the platen I4.

The disc 20 located and supporting the opposite end of the cylindricaldisc I6 is iixedly attached to the tubular sleeve 46, having ixedlyattached thereto a knob 48. 'I'his tubular sleeve 46 is mounted forrotation in the journal 50, ilxedly attached to the carriage. As theoperator grasps the knob 48 and rotates the same, the platen I4 isrotated.

Pin wheel feeding device The pin wheels and 62 are rotatably mountedupon a shaft 64 eccentrically disposed with respect to the center ofrotation of the platen I4. The shaft 64 has one end mounted upon abracket 66 fixedly attached to a stub shaft 68 passing` through thetubular member 30 and xedly attached to member 44. The opposite end ofthe shaft 64 is mounted upon a bracket 10 ilxedly attached to a tubularsleeve 12, mounted for rotation within tubular member 46. As member 44is non-:rotatably mounted, and the stub shaft 68 i'lxedly attachedthereto, together with member 66, it can be readily seen that theeccentrically disposed shaft 64 does not rotate with the platen. Thefeeding pins 14 in pin wheel 60 and the feeding pins 16 in pin wheel 62cooperate with the apertures 24 and the slots 26 to drive the pin wheels60 and 62 as the platen I4 is rotated. The feeding pins 14 and1li-function the same as gear teeth, which mesh with-what might bereferred to as gear sectors, that is, the edges of holes 24 and theedges of slots 26 respectively.

Lateral adjusting mechanism for pin wheels The pin wheel 62 isadjustable laterally or axially along the shaft 64. This is permissibledue to the slots 26 which extend longitudinally in equally spacedrelation' from the end of the platen toward the center thereof, or asfaras desirable. The pin wheel 62 is provided with a hub 80 having aflange 82 at one end thereof and-a flange 84 at the opposite end. 'I'hefiange 84 abuts a collar or yoke 86 integral with an internally threadedmember 88 threadedly engaging a threaded rod 80 terminating in a knob92. As the knob 82 is rotated, the rod 00 winch cannot be moved axially,actuates member 88 either to the left or the right, as viewed in Fig. 2.When it is actuated to the right, the collar or yoke 86 engaging theflange 84 moves the pin wheel 62 to the right.

j The flange 82 on the left end of the hub 80, as

viewed in Fig.- 2, engages an inwardly projecting annular flange S4integral with member 86, which is rotatably mounted upon member 88andheld in position by a nut 91. When member 88 is actuated to the leftas viewed in Fig. 2, the ini wardly projecting flange 94 integral withmember 86, engaging the flange 82, actuates the pin wheel 62 to theleft.

Member 88 is connected to member 88 bya bridging member 88 that extendsbetween the vflange I4 and the outer path of movement of the feedingpins 16 can-led by the pin wheel 62.

\ marginally punched record material of various widths.` If, forexample, record material eight inches wide is used, feeding wheels 60and 62 are adjusted so as to engage the marginal holes in such paper. If the paper is an inch or two wider, the pin wheel 62 is movedapproximately an inch or two to the right, so as to accommodate thewider paper. In order to utilize the paper it is necessary to fill orcover the slots between 'the pin wheels. If these slots are not covered,the type impinging upon the record material would mutilate the same.

Slot filling members Slot'lling members or strips |00 areprovided withlongitudinal tongues |02 seated in grooves |04 extending along the edgesof the slots' 26. Members |00 are lined or faced with a rubber facing|06. One end of each strip |00 is fixedly attached to the periphery ofmember 96, which is adjusted to the right or to the left as the case maybe, in unison with the pin wheel 62. 'I'he grooves |04 are curvedinwardly, so as to cause a portion of the strips |00 to lie within theperiphery of the platen when not in use. Thus, it may readily be seenthat the stripsY 00 passing through the grooves |04 are actuated withthe pin wheel, so that as the pin Wheel 62 is moved axially to theright, as viewed in Fig. 2, the space vacated by the pin wheel is filledwith the strips |00. When the pinwhee1 is actuated to the left, thefeeding pins 16 are moved into the portion of the slots vacated by thestrips |00.

The strips |00, together with annular member 96, rotatably mounted uponmember 98, rotate A is not provided with marginal feed holes, the.

pin wheel 62 may be actuated to the right suiilciently far to provideclearance for both of the margins of the writing material between thepins of the pin wheels 60 and 62, as clearly shown in Fig. 1, wherein apiece of paper is shown in writing position between the pin wheels 60and 62.

For the convenience of disclosure the wheels of the platen have beenshown of much heavier material V than would be required inactual'production. This has been done for the sake of clearness.

Instead of one end being provided withslots, both ends of the platencould be slotted, the slots of one end being arranged in staggeredrelation withV respect to the slots of the other end. The feeding pinswould then also be arranged in stagL gered relation, which would requiremarginally punched record material provided with rows of aperturesarranged in staggered relation. Filler members found in each of theslots of both ends may be adjusted axially so as to expand or con- Bythis arrangement a greater differential in Width of record materials maybe used uponI the platen.

Although the preferred modication of the device has been described, itwill be understood that within the purview of this invention variouschanges may-be made in the form, details, proportion and arrangement ofparts which'generally stated consist in a device capable of carrying outthe objects set forth, in the novel parts, combination of parts and modeof operation, as disclosed and defined in the appended claims.

Having thus described my invention, I claim:

1. In a pin wheel feeding typewriting machine, a pair of pin wheels, aplaten including a cylindrical member having openings adjacent one endand a plurality of longitudinal slots adjacent the other endftheopenings and the slots receiving the feeding pins of the pin Wheels, and

a plurality of filler members one for each of the,

slots adjustably mounted therein, said filler members cooperating withthe cylindrical member so as to present a uniform Writing surface overat least a portion of the slotted end of the cylindrical member.

2. In a pin wheel feeding typewriting machine, a platen including acylindrical member enclosing the pin wheel, said cylindrical memberincluding a plurality of longitudinal slots equally spaced around theperiphery of the cylinder, and a plurality of filler members adjustablymounted in xed relation .with respect to the pin Wheel so that as thepin Wheel is adjusted longitudinally the filler members move with thepin wheel so as to present a uniform writing surface on one side of thepin wheel.

3. In a writing machine having feeding pins for advancing the recordmaterial in registry past writing position, a platen including a.cylindrical member having slotted openings arranged in equally spacedrelation around the periphery adjacent one end, the feeding pinsprojecting through the slots, and ller members arhustably mounted in theslots to one side of the feeding pins, said filler members cooperatingwith the slotted portion of the cylinder to present a uniform writingsurface over at least a portion of the slotted end of the cylindricalmember.

4. In a writing machine, the combination of a platen including acylindrical member having a plurality of equally spaced longitudinalvslots adjacent one end thereof, filler members adjustably mounted in theslo'ts with adjustable feeding pins adapted to project through the slotscyclically, means for supporting the feeding pins, said feeding pinsbeing adjustable axially with respect to the platen, the ller membersbeing adjustable in unison with the feeding pins so as to cooperate,withY the slotted portion of the.

cylinder to present a uniform writing surface along one side of thefeeding pins.'

5. In a pin wheel feeding device for advancing superimposed strips ofpunched record material in .registry past the writing position of aWriting machine, the combination'including a cylindrical platen having aplurality of longitudinal slots adjacent one end thereof, said .platenhaving a resilient facing, adjustable members for filling at leastportions of said slots, saidl adjustable members being provided with aresilient facing Aso as to present a. uniform surface to at least aportion of the slotted end of the platen.`

6. In a pin wheel feeding device for advancing superimposed strips ofmarginally punched record material in registry past the writing position75 of a writing machine,vthe combination of a pair of' pin wheels, oneof which is adjustably mounted for axial adjustment with a cylindricalplaten having a roW of peripherally anranged pin holes adjacent one endfor the feeding pins of one of said 'pin wheels, and a plurality oflongitudinal slots in the other end thereof, the feeding pins of theadjustably mounted pin Wheel projecting through said slots which permitsaxial adjustment of said pin wheel.

'7. In a p'm wheel feeding device for advancing superimposed strips ofmarginally punched record material in registry past the writing positionof a writing machine, the combination of a cylindrical platen havingperipherally arranged holes adjacent one end and a plurality Lof longi-4tion of a writing machine, the combination of a pair of pin wheels, oneof which is adjustably mounted for axial adjustment with a cylindricalplaten having peripherally arranged holesv adjacent one end for thefeeding pins of one of said pin wheels, a plurality of longitudinal,slots in the other end of the platen, the feeding pins of the adjustablymounted wheel projecting through the slots, which permit axialadjustment of said pin Wheel, and filler members for the por- Wheels.

9. In a pin Wheel feeding device for advancing superimposed strips ofmarginally punched record material in registry past the writing positionof a writing machine, the combination of a pair of pin wheels, one ofwhich is adjustably mounted for axial adjustment with a cylindricalplaten having peripherally arranged holes adjacent one end for thefeeding pins of one of said pin Wheels,

.a plurality of longitudinal slots in the other end of the platen, thefeeding pins of the adjustably mounted wheel projecting through theslots,

which permit axial adjustment of said pin wheel, and adjustable membersone for each of the slots adapted to be adjusted into position to.closethe .portions of the slots located between the pin Wheels to present auniform writing surface.

l0. In a pin wheel feeding device for advancing superimposed vstrips ofmarginally punched rec- -ord material in registry past the writingposition of a writing machine, the combination of a pair of pin wheels,one of which is adjustably mounted for axial adjustment with acylindrical i platen having peripherally arranged holes adjacent one endfor the feeding pins bf one of said pin wheels, a plurality oflongitudinal slots in the other end of the platen, the feeding pins oftion of the slots located between the feeding the adjustably mountedwheel projecting through the slots, which permit axial adjustment ofsaid pin wheel, said slotshaving the sides thereof grooved, and tonguedller members adjustably mounted in the slots to fill a portion thereofto one side of the pin wheel feeding device.A

1l. In a pin wheel feeding device for advancing superimposed strips ofmarginally punchedV record .material in registry past the Writingposition of a writing machine, the combination of a the feeding pins-ofthe adjustably mounted pin` wheels projecting through said slots whichpermit axial adjustment of said pin wheels, and

means mounted for adjustment with said adjustable pin wheel for closingthe Kportions of the slots located intermediate Athe pin Wheels.

12. In a pin wheel feeding device for advancing superimposed strips ofmarginally punched record material in registry past the writing positionof a Writing machine, the combination of a holes adjacent one end and aplurality of longipair of pin wheels, one of which is adjustably mountedfor axial adjustment with a cylindrical platen having peripherallyarranged openings adjacent one end for the feeding pins of one of saidpin Wheels,a plurality of longitudinal grooved slots in the other end ofthe platen, the feeding pins of the adjustably mounted pin wheelprojecting through said slots which permit axial adjustment of said pinWheels, adjustable filler members having tongues seated in said groovedslots, and means adjustably mounted with the pin wheel for adjusting thefiller members in unison with the adjustment of the pin` wheel.

13. In a pin wheel feeding device for advanc' ing superimposed strips ofmarginally punched record material in registry past the writing positionof a writing machine, the combination of a cylindrical lplaten havingperipherally arranged holes adjacent one end and a plurality oflongitudinal slots adjacent the other end, with a pair of eccentricallydisposed pin wheels one of which is adjustably' mounted for axialadjustment,

means accessible from the.exterior of the platenV for axially adjustingsaid adjustable pin wheel, and means for filling the portions of theslots between the pin wheels, so as to present a uniform writing surfaceon the platen.

' 14. In a pin wheel feeding device for advancing superimposed strips ofmarginally punched reccrd material in'registry past the writing positionof a writing machine, the combination of a cylindrical platen havingperipherally arranged tudinal slots adjacent the other end, with a pairof eccentrically disposed pin wheels one of which is mounted for axialadjustment, the feeding pins ofl one of the pin wheels extending throughsaid holes and the feeding pins of the adjustable pin wheel extendingthrough said slots, means accessible from the exterior of the platen foracljusting said adjustably mounted pin wheel, and means rotatablyVmounted-upon said adjusting means for filling the portions of the slotsbetween the pin wheels.

15. In a pin wheel feeding device for advancing superimposed strips ofmarginally punched record material in registry past the writing positionof a writing machine, the combination of a cylindrical platen-havingperipherally arranged holes adjacent one end and a plurality oflongitudinal slots yadjacent the'other end, with a pair of eccentricallydisposed pin wheels one of which is mounted for axial adjustment, thefeeding pins of one of the pin wheels extending through said holes andthe feeding pins of the adjustable pin wheel extending through saidslots, means accessible from the exterior of the platen for adjustingsaid adjustably mounted pin wheel, means including an annular memberrotatably mounted upon said adjustable means, and a plurality of stripsxedly attached to said annular member for lling the portions of theslots between the pin Wheels. t

16. In a pin wheel feeding device for advancing superimposed strips ofpunched record material in registry past the writing position of, aWriting machine, the combination including a pair of eccentricallymounted pin Wheels, one of which is adjust-able axially, a cylindricalplaten having peripherally arranged openings adjacent one end for thefeeding pins of one of said pin wheels and a plurality of longitudinalslots in the other end thereof, a shaft eccentrically mounted terior ofthe platen for axially adjusting said ad-v justable pin wheel having itspins projecting through said slots so as to accommodate various widthsof record material.

17. In a pin wheel feeding device for advancing superimposed strips ofpunched record material in `registry past the writing position of awriting machine, the combination including a cylindrical platen havingperipherally arranged openings adjacent one end and 'a plurality oflongitudinal openings adjacent the other end, a shaft eccentricallymounted within the platen, a pair of rotary pin wheels mounted upon theshaft, one of which has its feeding pins projecting through the openingsin one end of the platen, the other having its feeding pins projectingthrough said longitudinal openings, means accessible from the exteriorof the platen for adjusting said other pin wheel axially, and meansincluding movably mounted strips for filling the portion of thelongitudinal openings located between the pin wheels.

18. In a pin wheel feeding device for advancing superimposed strips ofpunched record material in registry past the writing position of aWriting machine, the combination including a cylindrical platen havingperipherally arranged holes adjacent one end and aplurality oflongitudinal slots adjacent the other end, a shaft eccentrically mountedwithin the platen, means accessible from the exterior of the platen f orholding the shaft in a stationary position, a pair of pinwheelsfrotatably mounted upon said shaft, the pins of one of whichproject through said holes and the pins of the other project through theslots, the feeding pins cooperating with the holes and the slots as gearteeth to rotate the pin wheels at substantially the same peripheralspeed as the peripheral speed of the platen.

19. In a pin wheel feeding device for advancing superimposed strlpsofpunched record material in registry past the writing position of aWriting machine, the combination including a cylindrical platen havingperipherally arranged openings, a shaft xedly mounted but eccentricallydisposed Within the platen, a pair of pin wheels rotatably mounted uponsaid shaft, said pin wheels having the teeth thereof projecting throughthe openings of the platen, and means accessible from the exterior ofthe platen for adjusting at least one of said pin wheels -axially theteeth thereof being shifted in the openings of the platen so as toaccommodate record material of various widths.

20. In a pin Wheel feeding device for advancing superimposed strips ofpunched record material in registry past the writing position of awriting machine. the combination including a rotary cylindrical platenhaving peripherally arranged openings adjacent one end and a pluralityof longitudinally arranged slots adjacent the other end, an adjustablymounted shaft eccentrically disposed within the platen, a pair of pinwheels rotatably mounted upon said shaft, l

one of which has the feeding pins adapted to project through saidopenings and the other hav.. ing the feeding pins adapted to projectthrough said slot-s, adjustable means including a member straddling oneof said pin wheels for adjusting the same axially, said member includingan annular race concentrically disposed with respect to the axis ofrotation of the platen, and rotary means mounted upon said raceincluding members for filling the portions of the slots intermediate thepin wheels.

21. In a writing machine writing are, a platen forming the writing area,said platen including a cylindrical member having a plurality oilongitudinal slots eq spaced around the periphery of the cylindricalmember, and a plurality of ller members adjustably mounted in saidslots, the adjustment of said filler members adjusting the eective widthof the writing area.l

22. Ina Writingmachine having an adjustable writing area, aplaten-.forming the writing area, said platen having a. plurality ofequally spaced having an adjustable parallel slots, and illler membersadjustably mounted in said slots, the adJustment of said filler membersadjusting the size' of the effective writing area.

23. In a writing machine havingLa positive feeding device for aligningthe record material upon the writing area, the combination including afeeding device for aligning the record material upon the writing area, aplaten forming the writing area, said platen including a. plurality, of

equally spaced parallel slots, 'and ller members adjustably mounted insaid slots, the adjustment' of said filler members changing the size otthe effective writing area upon the lplaten.

2d. In a writing machine having a pin feeding device for positivelyadvancing the record material over an adjustable writing area, thecombination including a pin feeding device adjustably mounted, a platenforming the writing area, said platen including a plurality of equallyspaced parallel slots through which at least some of the feeding pinsproject, and ller members adjustably mounted in said slots, theadjustment of said lller members changing the size of the eilectlvewriting area upon the platen.

HENRY G. DYBVIG.

